Im considering a new MacBook to replace my first generation aluminum iMac. I do have an iPad, but I think I'd enjoy having a full featured laptop with me. I'm wondering how some of you deal will the smaller hard drives on the MacBook Air. Do you keep some of your apps and data on an external drive? Also considering an external monitor for home use. One last question. I'm not sure when today's model came out, are there any expected updates in the coming months? Thanks!